I already gave up

Almost 10 years without my wife wanting to have sex, I am a young man, I exercise a lot (my coworkers make comments about my body), hygienic, I take my wife to restaurants, the beach, I give her expensive gifts, support around the house and nothing, not even on the beach, sauna or any hot situation you can imagine, obviously I already talked to her a long time ago about it, I told her how bad it made me feel and she just laughed. Currently I am looking for partners and sex with whoever and wherever, I no longer care about being faithful or even that she notices but apparently she lives only for work and helping others except me.